ADC083000 datasheet(9/33 Pages) NSC

9 / 33 page

Converter Electrical Characteristics (Continued)

NOTE: This product is currently in development and the parameters specified in this section are DESIGN TARGETS.

The specifications in this section cannot be guaranteed until device characterization has taken place. The following

specifications apply after calibration for V

A =VDR = +1.9VDC, OutV = 1.9V, VIN FSR (a.c. coupled) = differential 870mVP-P,CL

= 10 pF, Differential, a.c. coupled Sinewave Input Clock, f

CLK = 1.5GHz at 0.5VP-P with 50% duty cycle, VBG = Floating, Non-

Extended Control Mode, SDR Mode, R

EXT = 3300

Ω ±0.1%, Analog Signal Source Impedance = 100Ω Differential. Boldface

limits apply for T

A =TMIN to TMAX. All other limits TA = 25˚C, unless otherwise noted. (Notes 6, 7)

Symbol

Parameter

Conditions

Typical

(Note 8)

Limits

(Note 8)

Units

(Limits)

DYNAMIC CONVERTER CHARACTERISTICS

SINAD

Signal-to-Noise Plus Distortion

Ratio

IN = 248 MHz, VIN = FSR − 0.5 dB

46.3

TBD

dB (min)

IN = 748 MHz, VIN = FSR − 0.5 dB

44.5

TBD

dB (min)

IN = 1498 MHz, VIN = FSR − 0.5 dB

40.9

TBD

dB (min)

SNR

Signal-to-Noise Ratio

IN = 248 MHz, VIN = FSR − 0.5 dB

46.9

TBD

dB (min)

IN = 748 MHz, VIN = FSR − 0.5 dB

44.0

TBD

dB (min)

IN = 1498 MHz, VIN = FSR − 0.5 dB

42.0

TBD

dB (min)

THD

Total Harmonic Distortion

IN = 248 MHz, VIN = FSR − 0.5 dB

-55

-TBD

dB (max)

IN = 748 MHz, VIN = FSR − 0.5 dB

-54

-TBD

dB (max)

IN = 1498 MHz, VIN = FSR − 0.5 dB

-47.4

-TBD

dB (max)

2nd Harm

Second Harmonic Distortion

IN = 248 MHz, VIN = FSR − 0.5 dB

−60

IN = 748 MHz, VIN = FSR − 0.5 dB

−60

IN = 1498 MHz, VIN = FSR − 0.5 dB

−60

3rd Harm

Third Harmonic Distortion

IN = 248 MHz, VIN = FSR − 0.5 dB

−65

IN = 748 MHz, VIN = FSR − 0.5 dB

−65

IN = 1498 MHz, VIN = FSR − 0.5 dB

−65

SFDR

Spurious-Free dynamic Range

IN = 248 MHz, VIN = FSR − 0.5 dB

TBD

dB (min)

IN = 748 MHz, VIN = FSR − 0.5 dB

TBD

dB (min)

IN = 1498 MHz, VIN = FSR − 0.5 dB

TBD

dB (min)

IMD

Intermodulation Distortion

IN1 = 321 MHz, VIN =FSR−7dB

IN2 = 326 MHz, VIN =FSR−7dB

-50

Out of Range Output Code

(In addition to OR Output high)

IN+)−(VIN−) > + Full Scale

255

IN+)−(VIN−) < − Full Scale

ANALOG INPUT AND REFERENCE CHARACTERISTICS

Full Scale Analog Differential

Input Range

FSR pin 14 Low

600

520

P-P (min)

680

P-P (max)

FSR pin 14 High

800

720

P-P (min)

880

P-P (max)

CMI

Analog Input Common Mode

Voltage

CMO

CMO −50

CMO +50

mV (min)

mV (max)

Analog Input Capacitance,

Normal operation (Notes 10,

11)

Differential

0.02

Each input pin to ground

1.6

Analog Input Capacitance, DES

Mode (Notes 10, 11)

Differential

0.08

Each input pin to ground

2.2

Differential Input Resistance

100

Ω (min)

106

Ω (max)

ANALOG OUTPUT CHARACTERISTICS

CMO

Common Mode Output Voltage

1.26

0.95

1.45

V (min)

V (max)

CMO_LVL

CMO input threshold to set DC

Coupling mode

A = 1.8V

0.60

A = 2.0V

0.66

TC V

CMO

Common Mode Output Voltage

Temperature Coefficient

A = −40˚C to +85˚C

118

ppm/˚C

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